Improvement in ice



2 SheetsuShreet l.

s. B. MARTIN. Ice-Machine.

-Patented April 20., 1875.

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2 Sheess--SheetZn4 S. B. MARTIN., lcd-Machine.

Patented April 20, 187.5l`

each chamber, also provided with ,a .cockthrough which the water 'may be permitted to ilow oli' into the lower tank. h k represent valves adapted to control openings in the bottom of the upper tank, which openings communicate with the independent pipes 11.* h2 h3 ot' different lengths, secured tothe upper sidea of each chamber, each of which is provided with the transverse spray-pipe, as shown. Each ot' these pipesis provided with en inde'- pende-nt cock, as shown. I I represent doorsadapted to close the openings between the chambers, as shown. By means of these doors close freezing-chambers are formed. J represents an eye-bolt, properly secured to the ceiling, and K a block of iron, also prof vided u-'ith'an eye, which is adapted to be frozen into the icc. as shown. Y

,g The operation of the machine is as follows: The vaporizingdiqnid jis permitted to flow through the coils located beneath the freezingplates in each chamber. Water from the upper tank is then admitted into the independent pipes h* h* h3, and delivered from them upon'the freezing-plates at different points in the form ot spray, the same heilig spread by the action of gravity into thin tllms,.but so retarded in its movement that -it`` may be frozen before it con tlow from the plate. This water should beiiltercd before being used, in order'that the perforated distributing-pipes may not become clogged.

.When the icc has been formed the proper thickness the tlow of waiterthrough the valve k is stopped, and also the dow of the volatile liquid through the coil, and water from pipe G', ct moderate temperature, is allowed to liow `through the' space iii rear 'of the freezing'plate not occupied by the coil, by which means the temperature is sutliciently raised to loosen the ice. The same muy then be lowered into the `tank below by suitable block and tackle attaehed tothe c ves J K,a`s shown. As theice theretxmn without infecting et all the opera- -tion of the rest. Very marked advantages are produced by the' construction described. The water to bc frozen is aiused iu very dna .streams upon the plates, and spread by the action of gravity in thin iilms, butso retarded in its movement as' to be' steadily s'eetcd by iile'ireecing action.v To produce the best re described.

suits care should lbe taken that the Water should not be delivered upon the plate faster than it congeals, but it' any excess is delivered to the plate it will be caught in the tank below. The freezing-chambers being independent ot each other the ice may be removed from one Ywhile. the freezing action continues in the remainder. By arranging these in ya continupurpose designed. By the employment of the closed canal the removal. of the ice and its l conveyance to the desired point is rendered.

bers, operating independently, but united to Y form a single series, substantially as described 3. Thecombinationot'thetrongh-like frames, with ceilings and doors for thelpurpose et' making 'close congealing-chalnbers, substantially as described.

4. The combination ot' the inclined trough, the trough-like freezing-plates, and the retrign orating coil, substantially as described.`

5. In combination with the freezing. ,fcha1ne bers, the canal provided with doors, as del6. The combination of a freezing-plate inclined from the vertical, as described; with a suitable spraying apparatus, substantially 'as set forth.

7. rlhe combination ot' the eyebolt, the iceblock, and suitable connectingtackle, as and for the purpose described.

8. The combination of the upper tank, the series of valves h h, and the series .of independent sprny pipes h1 his h3, as described.

9. The machine described, consistingot' the following' elements: an upper and lower tank, an intermediate series ot' close freezing-chambers,- a. system ot' cooling-pipes, and a water-v space for detoching purposes, combined substantially asset forth.

In witness whereof I have hereunto ect my hand and seal.

' -SAML. B. MARTIN. [L. s.l

Witnesses:

' RAMON DE ZALDI,

U. W. M. SMITH. 

